Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Delaware

Average Temperature Rankings, June 1999

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 1999 1-Month	71.3°F (21.8°C)	70.7°F (21.5°C)	0.6°F (0.3°C)	70th Coolest	Coolest since: 1998	1907
	71.3°F (21.8°C)	70.7°F (21.5°C)	0.6°F (0.3°C)	59th Warmest	Warmest since: 1998	2010
	Ties: 1964, 1998, 2004
May–Jun 1999 2-Month	67.2°F (19.6°C)	66.5°F (19.2°C)	0.7°F (0.4°C)	78th Coolest	Coolest since: 1997	1907
	67.2°F (19.6°C)	66.5°F (19.2°C)	0.7°F (0.4°C)	51st Warmest	Warmest since: 1998	2010
	Ties: 1936, 1976, 1985, 2020
Apr–Jun 1999 3-Month	62.6°F (17.0°C)	61.6°F (16.4°C)	1.0°F (0.6°C)	83rd Coolest	Coolest since: 1997	1907
	62.6°F (17.0°C)	61.6°F (16.4°C)	1.0°F (0.6°C)	46th Warmest	Warmest since: 1998	2010
	Ties: 1954
Mar–Jun 1999 4-Month	57.5°F (14.2°C)	56.9°F (13.8°C)	0.6°F (0.4°C)	72nd Coolest	Coolest since: 1997	1907
	57.5°F (14.2°C)	56.9°F (13.8°C)	0.6°F (0.4°C)	57th Warmest	Warmest since: 1998	2010
	Ties: 1919, 1952
Feb–Jun 1999 5-Month	53.6°F (12.0°C)	52.4°F (11.3°C)	1.2°F (0.7°C)	92nd Coolest	Coolest since: 1997	1907
	53.6°F (12.0°C)	52.4°F (11.3°C)	1.2°F (0.7°C)	37th Warmest	Warmest since: 1998	2012
	Ties: 1929, 1942, 1986, 1994, 2013
Jan–Jun 1999 6-Month	51.1°F (10.6°C)	49.2°F (9.6°C)	1.9°F (1.0°C)	106th Coolest	Coolest since: 1997	1940
	51.1°F (10.6°C)	49.2°F (9.6°C)	1.9°F (1.0°C)	23rd Warmest	Warmest since: 1998	2012
	Ties: 1925, 2004
Dec 1998–Jun 1999 7-Month	49.8°F (9.9°C)	47.4°F (8.6°C)	2.4°F (1.3°C)	110th Coolest	Coolest since: 1997	1904
	49.8°F (9.9°C)	47.4°F (8.6°C)	2.4°F (1.3°C)	18th Warmest	Warmest since: 1998	2012
	Ties: 1913, 1953
Nov 1998–Jun 1999 8-Month	49.4°F (9.7°C)	47.2°F (8.4°C)	2.2°F (1.3°C)	106th Coolest	Coolest since: 1997	1904
Nov 1998–Jun 1999 8-Month	49.4°F (9.7°C)	47.2°F (8.4°C)	2.2°F (1.3°C)	22nd Warmest	Warmest since: 1998	2012
Oct 1998–Jun 1999 9-Month	50.3°F (10.2°C)	48.2°F (9.0°C)	2.1°F (1.2°C)	107th Coolest	Coolest since: 1997	1904
	50.3°F (10.2°C)	48.2°F (9.0°C)	2.1°F (1.2°C)	21st Warmest	Warmest since: 1998	2012
	Ties: 2013
Sep 1998–Jun 1999 10-Month	52.4°F (11.3°C)	50.1°F (10.1°C)	2.3°F (1.2°C)	110th Coolest	Coolest since: 1997	1918
Sep 1998–Jun 1999 10-Month	52.4°F (11.3°C)	50.1°F (10.1°C)	2.3°F (1.2°C)	18th Warmest	Warmest since: 1998	2012
Aug 1998–Jun 1999 11-Month	54.5°F (12.5°C)	52.3°F (11.3°C)	2.2°F (1.2°C)	112th Coolest	Coolest since: 1997	1904
	54.5°F (12.5°C)	52.3°F (11.3°C)	2.2°F (1.2°C)	16th Warmest	Warmest since: 1998	2012
	Ties: 1921
Jul 1998–Jun 1999 12-Month	56.3°F (13.5°C)	54.2°F (12.3°C)	2.1°F (1.2°C)	109th Coolest	Coolest since: 1997	1904
	56.3°F (13.5°C)	54.2°F (12.3°C)	2.1°F (1.2°C)	19th Warmest	Warmest since: 1998	2012
	Ties: 2007
Jan 1998–Jun 1999 18-Month	55.3°F (12.9°C)	52.5°F (11.4°C)	2.8°F (1.5°C)	118th Coolest	Coolest since: 1998	1905
Jan 1998–Jun 1999 18-Month	55.3°F (12.9°C)	52.5°F (11.4°C)	2.8°F (1.5°C)	10th Warmest	Warmest since: 1991	2012
Jul 1997–Jun 1999 24-Month	56.4°F (13.6°C)	54.2°F (12.3°C)	2.2°F (1.3°C)	115th Coolest	Coolest since: 1998	1905
	56.4°F (13.6°C)	54.2°F (12.3°C)	2.2°F (1.3°C)	12th Warmest	Warmest to Date	2017
	Ties: 2011
Jul 1996–Jun 1999 36-Month	55.8°F (13.2°C)	54.2°F (12.3°C)	1.6°F (0.9°C)	106th Coolest	Coolest since: 1998	1906
	55.8°F (13.2°C)	54.2°F (12.3°C)	1.6°F (0.9°C)	20th Warmest	Warmest since: 1992	2018, 2019, 2021
	Ties: 1992, 2001, 2016
Jul 1995–Jun 1999 48-Month	55.4°F (13.0°C)	54.2°F (12.3°C)	1.2°F (0.7°C)	99th Coolest	Coolest since: 1998	1907
	55.4°F (13.0°C)	54.2°F (12.3°C)	1.2°F (0.7°C)	26th Warmest	Warmest since: 1993	2019, 2020
	Ties: 1993
Jul 1994–Jun 1999 60-Month	55.5°F (13.1°C)	54.2°F (12.3°C)	1.3°F (0.8°C)	101st Coolest	Coolest since: 1998	1908
Jul 1994–Jun 1999 60-Month	55.5°F (13.1°C)	54.2°F (12.3°C)	1.3°F (0.8°C)	23rd Warmest	Warmest to Date	2020, 2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings